CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Comprehensive income (loss)
Net income	$ 34,287	$ 23,599	$ 25,995	$ 27,012	$ 31,826	$ 32,266	$ 13,103	$ 26,671	$ 32,913	$ 23,637	$ (11,851)	$ 25,807	$ 110,893		$ 103,866	$ 70,506
Other comprehensive income (loss), net of taxes:
Change in net unrealized gains and losses on fixed maturities and equity securities													(248,410)	[1],[2]	114,178	156,954
Change in net funded status of pension and other postretirement benefit obligations													3,535		931	(3,087)
Other comprehensive income (loss)													(244,875)	[1]	115,109	153,867
Total													$ (133,982)		$ 218,975	$ 224,373

[1] All amounts are net of tax.

[2] The $22,245 pretax amount reclassified from accumulated other comprehensive income is included in net realized investment gains and losses and the $7,786 related tax expense (benefit) is included in income tax expense in the Consolidated Statement of Operations for the year ended December 31, 2013.